M4-CYG1UW-TSR-M-ENG_Iss11.docx
Cygnus UW-TSR Operating Manual
23
Taking a Thickness Measurement
1.
Remove any marine growth, loose rust,
dirt or loose coatings and brush the test
area clean
2a
When measuring underwater there is no
need to use a couplant - the water itself
will act as a couplant
2b
When measuring in air apply couplant
to the test surface
3.
Place the probe-face on the prepared,
test surface and make firm contact
applying gentle pressure
4.
The Gauge will display a thickness
measurement or an indication of Echo
Strength if no valid measurement has
been found
Echo-Strength Indicators
Should the Gauge be unable to detect a stable multiple echo signal
it displays an Echo Strength indication to help the operator locate
a suitable position.
1.
1 Bar Flashing:
No echoes detected
2.
1 1 Bar Flashing:
Only 1 echo detected
3.
2 1 Bar Flashing:
Only 2 echoes detected
4.
3 1 Bar Flashing:
3 echoes detected but they are not related
